Aircraft THz wave ground detection atmospheric absorption attenuation calculation

Abstract

Terahertz (THz) wave is 0.1 to 10THz electromagnetic wave, which has the advantages of wide frequency band and low energy. In the field of space exploration, THz has important application prospects. Up to now, the atmospheric absorption attenuation model of THz wave is mostly horizontal transmission attenuation model. However, most aircraft ground detection is under slant path, not horizontal. Based on ITU THz wave atmospheric absorption attenuation model, this paper deduces the reasonable atmosphere attenuation calculation method of THz wave propagation under slant path, and completes quantitative calculation.